CA1181825A - Terminal for a capacitor and a method of forming same - Google Patents
Terminal for a capacitor and a method of forming sameInfo
- Publication number
- CA1181825A CA1181825A CA000420814A CA420814A CA1181825A CA 1181825 A CA1181825 A CA 1181825A CA 000420814 A CA000420814 A CA 000420814A CA 420814 A CA420814 A CA 420814A CA 1181825 A CA1181825 A CA 1181825A
- Authority
- CA
- Canada
- Prior art keywords
- strip
- fold
- capacitor
- terminal
- foil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000011888 foil Substances 0.000 claims description 15
- 239000004020 conductor Substances 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 3
- 229910000679 solder Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
- H01G4/242—Terminals the capacitive element surrounding the terminal
- H01G4/245—Tabs between the layers of a rolled electrode
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Abstract:
A TERMINAL FOR A CAPACITOR AND METHOD OF FORMING SAME
A terminal (2) for a capacitor (1) is formed by making a first fold A (90 degrees) in a metal strip;
making a second fold B (180 degrees) in the strip; and making a third fold C (45 degrees) in the strip at an oblique angle to a lateral edge of the strip so that one end of the terminal (2) is laterally spaced from an edge of said strip.
(FIGURE 4)
A TERMINAL FOR A CAPACITOR AND METHOD OF FORMING SAME
A terminal (2) for a capacitor (1) is formed by making a first fold A (90 degrees) in a metal strip;
making a second fold B (180 degrees) in the strip; and making a third fold C (45 degrees) in the strip at an oblique angle to a lateral edge of the strip so that one end of the terminal (2) is laterally spaced from an edge of said strip.
(FIGURE 4)
Description
1 ~8~
This invention relates -to capacitors and more particularly to -the terminal which extends from one end of the capacitor.
Some capacitors are manufactured from a metal foil and a dielec-tric ma-terial wound in a circular or rectangular shape -to form a capacitor oE a given capacitance. Such a capacitor may be found in U.S. Pa-tent 1,900,352 issued July 13, 1929 and enti-tled "Condenser and Method of Making Same". The conducting foil used in such capaci-tors is usually eY~tremely ~hln and Eragile and a me-tal str-p of electrically conductive material is generally attached to each end of the foil as terminals which may then be connected into an electrical circui-t.
When an elec-trical conductor is connected to the terminal members it is customary to solder such terminals to the conductor. If the conductor moves it also moves one end of the terminal which may move the other end of the terminal and cause the terminal to tear away from the foil to which it was attached. One example of a capacitor ~0 terminal may be -Eound in U.S. Patent 1,248,B29 issued December 4, 1917 and entitled "Condenser Terminal and Method of Forming Same".
Disclosure of the Invention The present invention is used in combination with a capacitor of the type having a plurality of layers of oil and insulation wound to form a capacitor and at least one electrically conductive strip projecting beyond an edge of the layers of foil to provide a connecting terminal to an electrical conductor. The invention relates to the improvement wherein the terminal further comprises; a first fold in the strip in the direction of one ~f the -outside surfaces of the capacitor; a second fold in the strip in a direction toward another portion of the outside surface of the capacitor; and a third fold at an oblique angle to an edge of the strip.
/bm
This invention relates -to capacitors and more particularly to -the terminal which extends from one end of the capacitor.
Some capacitors are manufactured from a metal foil and a dielec-tric ma-terial wound in a circular or rectangular shape -to form a capacitor oE a given capacitance. Such a capacitor may be found in U.S. Pa-tent 1,900,352 issued July 13, 1929 and enti-tled "Condenser and Method of Making Same". The conducting foil used in such capaci-tors is usually eY~tremely ~hln and Eragile and a me-tal str-p of electrically conductive material is generally attached to each end of the foil as terminals which may then be connected into an electrical circui-t.
When an elec-trical conductor is connected to the terminal members it is customary to solder such terminals to the conductor. If the conductor moves it also moves one end of the terminal which may move the other end of the terminal and cause the terminal to tear away from the foil to which it was attached. One example of a capacitor ~0 terminal may be -Eound in U.S. Patent 1,248,B29 issued December 4, 1917 and entitled "Condenser Terminal and Method of Forming Same".
Disclosure of the Invention The present invention is used in combination with a capacitor of the type having a plurality of layers of oil and insulation wound to form a capacitor and at least one electrically conductive strip projecting beyond an edge of the layers of foil to provide a connecting terminal to an electrical conductor. The invention relates to the improvement wherein the terminal further comprises; a first fold in the strip in the direction of one ~f the -outside surfaces of the capacitor; a second fold in the strip in a direction toward another portion of the outside surface of the capacitor; and a third fold at an oblique angle to an edge of the strip.
/bm
2~
In its method aspect, the inven-tion relates LO a method of forming a -terminal from one end of an electri-cally conduc-tive strip connected to a foil capacitor comprising the steps: -folding the strip in a direction of one of the surfaces of the capacitor; folding the strip in a direc-tion of another portion of the ou-tside surface of the capacitor; and folding the strip at an oblique angle to an edqe of the strip so that one end o~
the strip is spaced from the folds.
Thus this invention provides a terminal, one end of wh~ch will not tear away from -the foil to which it is attached when the other end is moved a small distance.
It also allows a conductor to be soldered to the terminal without allowing the solder -to flow into the folds which would prevent the folds from allowing movement of a portion of the terminal.
/bm/ ~
` - la -~ ~ ~ 1 8 ~ ~ 370-80-0170 Accordingly, it is an advantage of this invention to provide a terminal, one end of which may be moved a small distance in a direction parallel or perpendicular to the central axis of a capacitor without causing strain on or 5 movement of the other end of the terminal.
Another advantage of the invention is that it allows visual inspection of the solder joints between the tabs of several capacitors and a conductor that connects the tabs together.
Detailed Description of the Invention FIGURES l, 2 and 3 illustrate how ~he capacitor tab is folded.
FIGURE ~ illustrates the capacitor tabs soldered to a conductors.
Referring now to the drawings, FIGURE 1 illustrates a capacitor l of the type comprised of a plurality of layers of foil and insulation wound to form a capacitor 20 having terminals 2 that project beyond a lateral edge of the foil and insula~ion. The terminal 2 has a fold A, which is a 90 degree bend so that the terminal 2 extends in a direction past one edge 3 of the capacitor 1.
FIGURE 2 illustrates a second fold B, which is a 180 25 degree bend, so that the terminal 2 extends in a direction past another edge 4 of said capacitor 1.
FIGURE 3 illustrates a third fold C which is at an oblique angle ~preferably 45 degrees) to a lateral edge of the terminal 2.
FIGURES l, 2 and 3 illustrate a method of forming a terminal 2 from one end of an electrically conductive strip connected to the foil of a capacitor l. The method includes making a first fold A (90 degrees) in the terminal 2 in a direction of one of the edges 3 of the 35 capacitor; making a second fold B (180 degrees) in the ~ ~ ~ 1 8 2 ~ 370-80-0170 terminal 2 in a direction oE another portion of the edges 4 of the capacitor; and making a third fold C (45 degrees) in the terminal at an oblique angle to the lateral edges of the strip so that one end of the 5 terminal 2 is laterally spaced from said folds.
FIGURE 4 illustrates how an elec~rical conductor 5 is attached to one end of each of the terminals 2 along one side of the capacitors 1. Another metal conductor may be attached to the ends of the other terminals 2.
10 Because of the oblique fold C in the terminals 2 the end of each terminal 2 may be soldered to the conductor 5 at a position that is not above the folds A or B. This prevents solder from flowing down onto the folds which would prevent the folds A or B from expanding ~hen the 15 conductor 5 is moved a small distance. The folds A and B
in each terminal permit some movement of the end of the terminal 2 before placing a strain on the connection between the other end of the terminal 2 and the thin foil of the capacitor 1.
While a preferred embodiment of this invention has been disclosed, it will be apparent to those skilled in the art, that changes may be made to the invention as set forth in the appended claims, and in some instances, certain features of the inv~ntion may be used to 25 advantage without corresponding use of other features.
For instance there may be more than two folds in the terminal 2 to provide strain relief so long as there is also a fold at an oblique angle to the lateral edye of the strip forming the terminal.~ Accordingly, it is 30 intended that the illustrative and descriptive materials herein be used to illustrate the principles of the invention and not to limit the scope thereof.
In its method aspect, the inven-tion relates LO a method of forming a -terminal from one end of an electri-cally conduc-tive strip connected to a foil capacitor comprising the steps: -folding the strip in a direction of one of the surfaces of the capacitor; folding the strip in a direc-tion of another portion of the ou-tside surface of the capacitor; and folding the strip at an oblique angle to an edqe of the strip so that one end o~
the strip is spaced from the folds.
Thus this invention provides a terminal, one end of wh~ch will not tear away from -the foil to which it is attached when the other end is moved a small distance.
It also allows a conductor to be soldered to the terminal without allowing the solder -to flow into the folds which would prevent the folds from allowing movement of a portion of the terminal.
/bm/ ~
` - la -~ ~ ~ 1 8 ~ ~ 370-80-0170 Accordingly, it is an advantage of this invention to provide a terminal, one end of which may be moved a small distance in a direction parallel or perpendicular to the central axis of a capacitor without causing strain on or 5 movement of the other end of the terminal.
Another advantage of the invention is that it allows visual inspection of the solder joints between the tabs of several capacitors and a conductor that connects the tabs together.
Detailed Description of the Invention FIGURES l, 2 and 3 illustrate how ~he capacitor tab is folded.
FIGURE ~ illustrates the capacitor tabs soldered to a conductors.
Referring now to the drawings, FIGURE 1 illustrates a capacitor l of the type comprised of a plurality of layers of foil and insulation wound to form a capacitor 20 having terminals 2 that project beyond a lateral edge of the foil and insula~ion. The terminal 2 has a fold A, which is a 90 degree bend so that the terminal 2 extends in a direction past one edge 3 of the capacitor 1.
FIGURE 2 illustrates a second fold B, which is a 180 25 degree bend, so that the terminal 2 extends in a direction past another edge 4 of said capacitor 1.
FIGURE 3 illustrates a third fold C which is at an oblique angle ~preferably 45 degrees) to a lateral edge of the terminal 2.
FIGURES l, 2 and 3 illustrate a method of forming a terminal 2 from one end of an electrically conductive strip connected to the foil of a capacitor l. The method includes making a first fold A (90 degrees) in the terminal 2 in a direction of one of the edges 3 of the 35 capacitor; making a second fold B (180 degrees) in the ~ ~ ~ 1 8 2 ~ 370-80-0170 terminal 2 in a direction oE another portion of the edges 4 of the capacitor; and making a third fold C (45 degrees) in the terminal at an oblique angle to the lateral edges of the strip so that one end of the 5 terminal 2 is laterally spaced from said folds.
FIGURE 4 illustrates how an elec~rical conductor 5 is attached to one end of each of the terminals 2 along one side of the capacitors 1. Another metal conductor may be attached to the ends of the other terminals 2.
10 Because of the oblique fold C in the terminals 2 the end of each terminal 2 may be soldered to the conductor 5 at a position that is not above the folds A or B. This prevents solder from flowing down onto the folds which would prevent the folds A or B from expanding ~hen the 15 conductor 5 is moved a small distance. The folds A and B
in each terminal permit some movement of the end of the terminal 2 before placing a strain on the connection between the other end of the terminal 2 and the thin foil of the capacitor 1.
While a preferred embodiment of this invention has been disclosed, it will be apparent to those skilled in the art, that changes may be made to the invention as set forth in the appended claims, and in some instances, certain features of the inv~ntion may be used to 25 advantage without corresponding use of other features.
For instance there may be more than two folds in the terminal 2 to provide strain relief so long as there is also a fold at an oblique angle to the lateral edye of the strip forming the terminal.~ Accordingly, it is 30 intended that the illustrative and descriptive materials herein be used to illustrate the principles of the invention and not to limit the scope thereof.
Claims (8)
1. In combination with a capacitor of the type having a plurality of layers of foil and insulation wound to form a capacitor and at least one electrically conductive strip projecting beyond an edge of the layers of foil to provide a connecting terminal to an electrical conductor, the improvement wherein said terminal further comprises;
a first fold in said strip in the direction of one of said outside surfaces of said capacitor;
a second fold in said strip in a direction toward another portion of the outside surface of said capacitor;
and a third fold at an oblique angle to an edge of said strip.
a first fold in said strip in the direction of one of said outside surfaces of said capacitor;
a second fold in said strip in a direction toward another portion of the outside surface of said capacitor;
and a third fold at an oblique angle to an edge of said strip.
2. The combination as recited in Claim 1 wherein the second fold is in the direction opposite of that of said first fold.
3. The combination as recited in Claim 1 wherein the first fold is a 90 degree bend, the second fold is a 180 degree bend and the third fold is a 45 degree bend.
4. The combination as recited in Claim 1 or 2 wherein one end of the strip extends beyond the lateral edges of said first and second folds.
5. A method of forming a terminal from one end of an electrically conductive strip connected to a foil capacitor comprising the steps:
folding the strip in a direction of one of the surfaces of said capacitor;
folding the strip in a direction of another portion of the outside surface of said capacitor; and folding the strip at an oblique angle to an edge of said strip so that one end of said strip is spaced from said folds.
folding the strip in a direction of one of the surfaces of said capacitor;
folding the strip in a direction of another portion of the outside surface of said capacitor; and folding the strip at an oblique angle to an edge of said strip so that one end of said strip is spaced from said folds.
6. The method as recited in Claim 5 wherein the first fold is a 90 degree bend, the second fold is a 180 degree bend and the third fold is a 45 degree bend.
7. A method of forming a terminal from one end of an electrically conductive strip connected to a foil capacitor comprising the steps:
making a plurality of folds in the strip in opposite directions of each other; and making an additional fold in a strip at an oblique angle to a lateral edge of said strip so that one end of said terminal is spaced from said folds.
making a plurality of folds in the strip in opposite directions of each other; and making an additional fold in a strip at an oblique angle to a lateral edge of said strip so that one end of said terminal is spaced from said folds.
8. The method as recited in Claim 5 or 7 including the step of:
soldering a conductor to the under side of the end of said strip.
soldering a conductor to the under side of the end of said strip.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US390,165 | 1982-06-21 | ||
| US06/390,165 US4413305A (en) | 1982-06-21 | 1982-06-21 | Terminal for a capacitor and a method of forming same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1181825A true CA1181825A (en) | 1985-01-29 |
Family
ID=23541360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000420814A Expired CA1181825A (en) | 1982-06-21 | 1983-02-03 | Terminal for a capacitor and a method of forming same |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4413305A (en) |
| EP (1) | EP0103495B1 (en) |
| JP (1) | JPS594112A (en) |
| CA (1) | CA1181825A (en) |
| DE (1) | DE3378942D1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8420347D0 (en) * | 1984-08-10 | 1984-09-12 | Molins Plc | Conveying rod-like articles |
| US5104796A (en) * | 1987-04-06 | 1992-04-14 | International Minerals & Chemical Corp. | High titer production of human somatomedin c |
| GB2213322A (en) * | 1987-08-21 | 1989-08-09 | Secr Defence | Terminating a flat wound capacitor used in a discharge circuit |
| JPH03124010A (en) * | 1989-10-08 | 1991-05-27 | Murata Mfg Co Ltd | Terminal of electronic component |
| DE4238643A1 (en) * | 1992-11-16 | 1994-05-19 | Siemens Matsushita Components | Electrical capacitor with low self-inductance for energy electronics |
| GB2293492A (en) * | 1994-09-07 | 1996-03-27 | Cenwick Electronics Ltd | Terminating electronic components |
| US6327133B1 (en) * | 1999-07-02 | 2001-12-04 | American Shizuki Corporation | Nylon shell doghouse capacitor assembly |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1248829A (en) * | 1915-09-17 | 1917-12-04 | Wagner Electric Mfg Co | Condenser-terminal and method of forming same. |
| US1833392A (en) * | 1925-12-29 | 1931-11-24 | Dubilier Condenser Corp | Electrical condenser |
| US1796683A (en) * | 1926-12-16 | 1931-03-17 | Western Electric Co | Method of producing articles |
| US1862297A (en) * | 1929-03-15 | 1932-06-07 | Gen Electric | Capacitor and method forming the same |
| US1900352A (en) * | 1929-07-13 | 1933-03-07 | Grigsby Grunow Co | Condenser and method of making the same |
| DE555420C (en) * | 1929-08-16 | 1933-10-27 | Gerhard Jaeger | Device for connecting electric batteries, in particular flashlight batteries |
| US2049585A (en) * | 1932-05-23 | 1936-08-04 | Economy Fuse And Mfg Co | Electrical device |
| US2004616A (en) * | 1933-03-09 | 1935-06-11 | Western Electric Co | Electric apparatus |
| DE868480C (en) * | 1943-02-26 | 1953-02-26 | Bosch Gmbh Robert | Electrical capacitors for high current loads |
| GB713058A (en) * | 1951-09-01 | 1954-08-04 | Siemens Ag | Improvements in or relating to electric condensers |
| US2908886A (en) * | 1955-10-28 | 1959-10-13 | Cornell Dubilier Electric | Terminal lug for a capacitor or the like |
| US3060356A (en) * | 1956-05-14 | 1962-10-23 | Cornell Dubilier Electric | Tubular capacitor and method of making same |
| US3267343A (en) * | 1965-03-01 | 1966-08-16 | Illinois Tool Works | Wound capacitor and lead assembly |
-
1982
- 1982-06-21 US US06/390,165 patent/US4413305A/en not_active Expired - Lifetime
-
1983
- 1983-02-03 CA CA000420814A patent/CA1181825A/en not_active Expired
- 1983-05-20 EP EP83401006A patent/EP0103495B1/en not_active Expired
- 1983-05-20 DE DE8383401006T patent/DE3378942D1/en not_active Expired
- 1983-06-21 JP JP58110308A patent/JPS594112A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| EP0103495B1 (en) | 1989-01-11 |
| JPH0371763B2 (en) | 1991-11-14 |
| DE3378942D1 (en) | 1989-02-16 |
| JPS594112A (en) | 1984-01-10 |
| US4413305A (en) | 1983-11-01 |
| EP0103495A2 (en) | 1984-03-21 |
| EP0103495A3 (en) | 1985-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4591814A (en) | Electronic component comprising printed circuit elements disposed on a folded tape and method of making such component | |
| CA1181825A (en) | Terminal for a capacitor and a method of forming same | |
| US5371650A (en) | Hermetically sealed capacitor and method for making the same | |
| US5041006A (en) | Insulation displacement contact element | |
| US4113338A (en) | Insulation-piercing contact | |
| US3976922A (en) | Low impedance multiple electrolytic capacitor assembly | |
| FI77338C (en) | FRAMSTAELLNINGSFOERFARANDE AV EN SJAELVREGENERERANDE KONDENSATOR. | |
| US4170812A (en) | Method of making a dual value capacitor | |
| EP0115389A1 (en) | Dual film metallized capacitor | |
| US4124876A (en) | Dual mica capacitor | |
| US4307434A (en) | Multi-section capacitor having continuous foil strip interconnections between sections and method of making the same | |
| US5040094A (en) | 3-terminal capacitor | |
| JPH0532993Y2 (en) | ||
| CN1015580B (en) | Electrolytic foil capacitor | |
| GB2067355A (en) | Electrode lead tab for capacitor | |
| JPS6028124Y2 (en) | Low impedance parallel electrolytic capacitor assembly | |
| JPH0644113U (en) | Impedance element | |
| US3564360A (en) | Stacked capacitor | |
| JPS5932124Y2 (en) | Chip type electrolytic capacitor | |
| JP2542956Y2 (en) | Terminal mounting structure for electrical components | |
| EP0326649A2 (en) | Shielded low dielectric absorbtion capacitor | |
| JPS6224888Y2 (en) | ||
| US1768333A (en) | Electrical condenses and method of making the same | |
| JPH069448Y2 (en) | Chip-shaped varistor | |
| JPS607015Y2 (en) | Terminal strip of terminal board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |